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Mapping of shadows cast on a protoplanetary disk by a close binary system
- D'Orazi, V. (author)
- Gratton, R. (author)
- Desidera, S. (author)
- show more...
- Avenhaus, H. (author)
- Mesa, D. (author)
- Stolker, T. (author)
- Giro, E. (author)
- Benatti, S. (author)
- Jang-Condell, H. (author)
- Rigliaco, E. (author)
- Sissa, E. (author)
- Scatolin, T. (author)
- Benisty, M. (author)
- Bhowmik, T. (author)
- Boccaletti, A. (author)
- Bonnefoy, M. (author)
- Brandner, W. (author)
- Buenzli, E. (author)
- Chauvin, G. (author)
- Daemgen, S. (author)
- Damasso, M. (author)
- Feldt, M. (author)
- Galicher, R. (author)
- Girard, J. (author)
- Hagelberg, J. (author)
- Mouillet, D. (author)
- Kral, Q. (author)
- Lanniers, J. (author)
- Lagrange, A-M (author)
- La Nglois, M. (author)
- Maire, A-L (author)
- Menard, F. (author)
- Moeller-Nilsson, O. (author)
- Perrot, C. (author)
- Peretti, S. (author)
- Rabou, P. (author)
- Ramos, J. (author)
- Rodet, L. (author)
- Roelfsema, R. (author)
- Roux, A. (author)
- Salter, G. (author)
- Schlieder, J. E. (author)
- Schmidt, T. (author)
- Szulagyi, J. (author)
- Thalmann, C. (author)
- Thebault, P. (author)
- van der Plas, G. (author)
- Vigan, A. (author)
- Zurlo, A. (author)
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- (creator_code:org_t)
- 2018-11-26
- 2019
- English.
- In: Nature Astronomy. - : Springer Science and Business Media LLC. - 2397-3366. ; 3:2, s. 167-172
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- For a comprehensive understanding of planetary formation and evolution, we need to investigate the environment in which planets form: circumstellar disks. Here we present high-contrast imaging observations of V4046 Sagittarii, a 20-Myr-old close binary known to host a circumbinary disk. We have discovered the presence of rotating shadows in the disk, caused by mutual occultations of the central binary. Shadow-like features are often observed in disks(1,2), but those found thus far have not been due to eclipsing phenomena. We have used the phase difference due to light travel time to measure the flaring of the disk and the geometrical distance of the system. We calculate a distance that is in very good agreement with the value obtained from the Gaia mission's Data Release 2 (DR2), and flaring angles of alpha = (6.2 +/- 0.6)degrees and alpha = (8.5 +/- 1.0)degrees for the inner and outer disk rings, respectively. Our technique opens up a path to explore other binary systems, providing an independent estimate of distance and the flaring angle, a crucial parameter for disk modelling.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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- ref (subject category)
- art (subject category)
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- By the author/editor
- D'Orazi, V.
- Gratton, R.
- Desidera, S.
- Avenhaus, H.
- Mesa, D.
- Stolker, T.
- show more...
- Giro, E.
- Benatti, S.
- Jang-Condell, H.
- Rigliaco, E.
- Sissa, E.
- Scatolin, T.
- Benisty, M.
- Bhowmik, T.
- Boccaletti, A.
- Bonnefoy, M.
- Brandner, W.
- Buenzli, E.
- Chauvin, G.
- Daemgen, S.
- Damasso, M.
- Feldt, M.
- Galicher, R.
- Girard, J.
- Janson, Markus
- Hagelberg, J.
- Mouillet, D.
- Kral, Q.
- Lanniers, J.
- Lagrange, A-M
- La Nglois, M.
- Maire, A-L
- Menard, F.
- Moeller-Nilsson, ...
- Perrot, C.
- Peretti, S.
- Rabou, P.
- Ramos, J.
- Rodet, L.
- Roelfsema, R.
- Roux, A.
- Salter, G.
- Schlieder, J. E.
- Schmidt, T.
- Szulagyi, J.
- Thalmann, C.
- Thebault, P.
- van der Plas, G.
- Vigan, A.
- Zurlo, A.
- show less...
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
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- Nature Astronomy
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- Stockholm University
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